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54325222221 = 3161311226539
BaseRepresentation
bin110010100110000010…
…010001101101001101
312012020000111020002110
4302212002101231031
51342224224102341
640542350014233
73632141525034
oct624602215515
9165200436073
1054325222221
1121048198576
12a6414a7379
135179b8060a
1428b4d4171b
15162e45c216
hexca6091b4d

54325222221 has 8 divisors (see below), whose sum is σ = 72478542240. Its totient is φ = 36194358512.

The previous prime is 54325222183. The next prime is 54325222241. The reversal of 54325222221 is 12222252345.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54325222221 - 215 = 54325189453 is a prime.

It is a super-2 number, since 2×543252222212 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54325222241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5608431 + ... + 5618108.

It is an arithmetic number, because the mean of its divisors is an integer number (9059817780).

Almost surely, 254325222221 is an apocalyptic number.

It is an amenable number.

54325222221 is a deficient number, since it is larger than the sum of its proper divisors (18153320019).

54325222221 is a wasteful number, since it uses less digits than its factorization.

54325222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11228155.

The product of its digits is 19200, while the sum is 30.

Adding to 54325222221 its reverse (12222252345), we get a palindrome (66547474566).

The spelling of 54325222221 in words is "fifty-four billion, three hundred twenty-five million, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 1613 4839 11226539 33679617 18108407407 54325222221